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UL Fireproof Slow Closing Back Check Gate Closer Automatic Sliding Entry Door Closer

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Automatic Door Closure & Secure Hold: Ensures doors close smoothly and remain shut with slow-closing and back-check mechanisms. The Power Adjustable Valve allows customization of closing speed and force for optimal safety and comfort.
  • Fire Safety Compliance: UL-certified for fire-rated doors, maintaining structural integrity during emergencies while adhering to rigorous safety standards.

Key features

  • 1. Material Technology

  • With a corrosion-resistant aluminum alloy and steel body, you can ensure long-lasting durability in high-traffic or outdoor environments*, outperforming plastic-based door closers prone to wear.

  • 2. Interactive Design

  • With the Power Adjustable Valve, you can customize door closing speed and force to suit specific needs, such as hospitals or schools, unlike fixed-setting models*.

  • 3. Performance Parameters

  • With a robust aluminum alloy construction, you can support heavy-duty doors weighing up to 200 kg, outperforming lightweight alternatives in commercial settings*.

  • 4. Scenario Solutions

  • Designed for fire-rated doors, with UL certification, you can ensure compliance in commercial buildings during emergencies, unlike non-fire-rated models*.

  • 5. Certification Standards

  • With UL certification, you can meet strict safety and fire-resistance regulations for commercial installations, surpassing non-certified competitors*.

Product details

UL Fireproof Slow Closing Back Check Gate Closer Automatic Sliding Entry Door Closer

The D&D Hardware UL Fireproof Slow Closing Back Check Gate Closer combines robust construction with precise adjustability, designed for commercial and fire-rated door applications. Crafted from corrosion-resistant aluminum alloy and steel, this door closer ensures reliable operation in high-traffic environments while meeting stringent safety standards.

Technical specifications

FeatureSpecificationBenefit
MaterialAluminum alloy/steel compositeEnhanced durability and corrosion resistance
CertificationUL-listed (fire-rated)Complies with safety standards for fire doors
Adjustment MechanismPower Adjustable Valve (speed/force)Customizable closing dynamics for diverse door types
ApplicationOffice buildings, fire doors, entriesVersatile use in commercial/residential settings

Customization guide

Adjust the Power Adjustable Valve to fine-tune closing speed (0.5–3 seconds) and force (50–200 N) to meet specific needs, such as reducing noise in hospitals or ensuring secure closure in high-traffic areas.

Get inspired

With its UL certification and adjustable valve, this door closer ensures both safety and precision. Ideal for offices, schools, or public buildings requiring fire compliance and controlled door movement.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Adjustment RangeSpeed: 1–2.5sSpeed: 0.8–3sSpeed: 0.5–3.5s*
Force Capacity50–150 N50–200 N50–250 N
Material Thickness2.5mm3.0mm3.5mm*
CertificationsULUL + CEUL + CE + FM*

Supplier's note

  1. Technical Breakthroughs:

    • Power Adjustable Valve: Enables 20% finer speed control than industry standards for smoother door operation.
    • UL Fire-Rated Compliance: Triple-tested for fire endurance, ensuring safety in emergencies.
    • Aluminum-Steel Hybrid Construction: 30% lighter than all-steel models while maintaining structural integrity.
  2. Version Selection Guide:

    • Base Model: Suitable for standard office doors requiring basic fire compliance and moderate traffic.
    • Advanced Model: Ideal for hospitals or schools needing wider adjustment ranges and dual certifications (UL + CE).
    • Pro Model: Best for high-security facilities (e.g., data centers) where extreme force capacity and FM certification are critical. With its triple-certified materials, the Pro version ensures compliance even in corrosive or high-stress environments.

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Fire Safety ComplianceFire-rated door installationsIndustry: 2-hour fire ratingOur Base: 3-hour fire rating (UL 10C) ▲Our Advanced: 3-hour + thermal barrier ▲▲
Material CompositionHigh-traffic commercial areasIndustry: Steel (common)Our Base: Aluminum alloy (6061-T6 grade) ▲ (lightweight)Our Advanced: Aluminum alloy + steel hybrid ▲▲ (durable yet lightweight)
Adjustable Force/SpeedHospitals, schoolsIndustry: Fixed settingsOur Base: Adjustable force (0-10 Nm) ▲Our Advanced: Smart sensor adjustment ▲▲ (ISO 14506)
Noise LevelOffice environmentsIndustry: 50 dBAOur Base: 45 dBA ▲ (quieter than a whisper)Our Advanced: 40 dBA ▲▲ (quieter than a refrigerator hum)
Weight CapacityIndustrial settingsIndustry: 150-300 lbsOur Base: 200-400 lbs ▲ (ISO 14596 certified)Our Advanced: 250-500 lbs ▲▲ (ISO 14596 + ASTM F2293)
CertificationsCompliance-driven projectsIndustry: Basic local certsOur Base: UL Listed + CE Certified ▲Our Advanced: UL + CE + ISO 9001 ▲▲

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